Powder injector



FIG. 1 shows a left side view of a powder injector;

FIG. 2 shows a right side view of FIG. 1;

FIG. 3 shows a cross-section view taken along line 3-3 of FIG. 4;

FIG. 4 shows a front view of FIG. 1;

FIG. 5 shows a rear view of FIG. 1;

FIG. 6 shows a top view of FIG. 1; and,

FIG. 7 shows a bottom view of FIG. 1.

The broken lines in the drawings depict unclaimed environmental subject matter. 

CLAIM We claim the ornamental design for a powder injector, as shown and described. 